Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET)Network SecurityEasy
A network administrator is troubleshooting an issue where users on a specific subnet cannot access resources on another subnet, despite both subnets being connected to the same router. The administrator suspects an issue with how the router forwards traffic between these subnets. Which networking device functionality is primarily responsible for directing traffic between different IP networks?
- ARouting
- BSwitching
- CHubbing
- DBridging
Show answer & explanationAnswer & explanation
Correct answer: A. Routing
Routing is the process of selecting a path for traffic in a network or between multiple networks. Routers use IP addresses to make forwarding decisions between different subnets.
Why the other options are wrong
- B. Switching operates at Layer 2 (Data Link) and forwards frames within the same local network (subnet).
- C. Hubbing is a Layer 1 (Physical) device that simply repeats signals, not forwarding traffic intelligently.
- D. Bridging is an older term for connecting two network segments, similar to a switch, and operates at Layer 2.
Routing
The process of forwarding packets between different computer networks based on their IP addresses.
- Operates at Layer 3 (Network Layer) of the OSI model.
- Uses IP addresses to determine the next hop.
- Performed by routers to connect different subnets.
Memory trick: Route traffic right, between networks, using IP.